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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of jmespath.swift, reference 1.0.3 (3877a5), with Swift 6.1 for Linux on 29 Apr 2025 05:10:44 UTC.

Swift 6 data race errors: 2

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/adam-fowler/jmespath.swift.git
Reference: 1.0.3
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/adam-fowler/jmespath.swift
 * tag               1.0.3      -> FETCH_HEAD
HEAD is now at 3877a50 Merge pull request #8 from adam-fowler/windows-ci-2
Cloned https://github.com/adam-fowler/jmespath.swift.git
Revision (git rev-parse @):
3877a5060e85ae33e3b9fe51ab581784f65ec80e
SUCCESS checkout https://github.com/adam-fowler/jmespath.swift.git at 1.0.3
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/adam-fowler/jmespath.swift.git
https://github.com/adam-fowler/jmespath.swift.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
  ],
  "manifest_display_name" : "jmespath.swift",
  "name" : "jmespath.swift",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JMESPath",
      "targets" : [
        "JMESPath"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JMESPathTests",
      "module_type" : "SwiftTarget",
      "name" : "JMESPathTests",
      "path" : "Tests/JMESPathTests",
      "sources" : [
        "ComplianceTests.swift",
        "ErrorTests.swift",
        "LexerTests.swift",
        "MirrorTests.swift"
      ],
      "target_dependencies" : [
        "JMESPath"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JMESPath",
      "module_type" : "SwiftTarget",
      "name" : "JMESPath",
      "path" : "Sources/JMESPath",
      "product_memberships" : [
        "JMESPath"
      ],
      "sources" : [
        "Ast.swift",
        "Error.swift",
        "Expression.swift",
        "Functions.swift",
        "Interpreter.swift",
        "Lexer.swift",
        "Parser.swift",
        "Runtime.swift",
        "Sendable.swift",
        "Token.swift",
        "Variable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/13] Compiling JMESPath Token.swift
[4/13] Compiling JMESPath Sendable.swift
[5/14] Compiling JMESPath Runtime.swift
/host/spi-builder-workspace/Sources/JMESPath/Runtime.swift:23:24: warning: static property 'builtInFunctions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |
22 |     private var functions: [String: JMESFunction.Type]
23 |     private static var builtInFunctions: [String: JMESFunction.Type] = [
   |                        |- warning: static property 'builtInFunctions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: convert 'builtInFunctions' to a 'let' constant to make 'Sendable' shared state immutable
   |                        |- note: add '@MainActor' to make static property 'builtInFunctions' part of global actor 'MainActor'
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
24 |         "abs": AbsFunction.self,
25 |         "avg": AvgFunction.self,
[6/14] Compiling JMESPath Parser.swift
[7/14] Compiling JMESPath Interpreter.swift
[8/14] Compiling JMESPath Lexer.swift
[9/14] Compiling JMESPath Variable.swift
/host/spi-builder-workspace/Sources/JMESPath/Variable.swift:270:28: warning: static property 'nsNumberBoolType' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
268 |     }
269 |
270 |     fileprivate static var nsNumberBoolType = type(of: NSNumber(value: true))
    |                            |- warning: static property 'nsNumberBoolType' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                            |- note: convert 'nsNumberBoolType' to a 'let' constant to make 'Sendable' shared state immutable
    |                            |- note: add '@MainActor' to make static property 'nsNumberBoolType' part of global actor 'MainActor'
    |                            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
271 | }
272 |
[10/14] Emitting module JMESPath
/host/spi-builder-workspace/Sources/JMESPath/Runtime.swift:23:24: warning: static property 'builtInFunctions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
21 |
22 |     private var functions: [String: JMESFunction.Type]
23 |     private static var builtInFunctions: [String: JMESFunction.Type] = [
   |                        |- warning: static property 'builtInFunctions' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: convert 'builtInFunctions' to a 'let' constant to make 'Sendable' shared state immutable
   |                        |- note: add '@MainActor' to make static property 'builtInFunctions' part of global actor 'MainActor'
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
24 |         "abs": AbsFunction.self,
25 |         "avg": AvgFunction.self,
/host/spi-builder-workspace/Sources/JMESPath/Variable.swift:270:28: warning: static property 'nsNumberBoolType' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
268 |     }
269 |
270 |     fileprivate static var nsNumberBoolType = type(of: NSNumber(value: true))
    |                            |- warning: static property 'nsNumberBoolType' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                            |- note: convert 'nsNumberBoolType' to a 'let' constant to make 'Sendable' shared state immutable
    |                            |- note: add '@MainActor' to make static property 'nsNumberBoolType' part of global actor 'MainActor'
    |                            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
271 | }
272 |
[11/14] Compiling JMESPath Expression.swift
[12/14] Compiling JMESPath Functions.swift
[13/14] Compiling JMESPath Ast.swift
[14/14] Compiling JMESPath Error.swift
Build complete! (7.10s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "jmespath.swift",
  "name" : "jmespath.swift",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "JMESPath",
      "targets" : [
        "JMESPath"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "JMESPathTests",
      "module_type" : "SwiftTarget",
      "name" : "JMESPathTests",
      "path" : "Tests/JMESPathTests",
      "sources" : [
        "ComplianceTests.swift",
        "ErrorTests.swift",
        "LexerTests.swift",
        "MirrorTests.swift"
      ],
      "target_dependencies" : [
        "JMESPath"
      ],
      "type" : "test"
    },
    {
      "c99name" : "JMESPath",
      "module_type" : "SwiftTarget",
      "name" : "JMESPath",
      "path" : "Sources/JMESPath",
      "product_memberships" : [
        "JMESPath"
      ],
      "sources" : [
        "Ast.swift",
        "Error.swift",
        "Expression.swift",
        "Functions.swift",
        "Interpreter.swift",
        "Lexer.swift",
        "Parser.swift",
        "Runtime.swift",
        "Sendable.swift",
        "Token.swift",
        "Variable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.2"
}
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Done.